Comment 0 for bug 109223

Mirror-prober hanging with the following message:

Unhandled error in Deferred:
Traceback (most recent call last):
Failure: canonical.launchpad.scripts.distributionmirror_prober.UnknownURLScheme: The mirror prober doesn't know how to check URLs with an '' scheme.

This is repeated 6 times.

Can be run manually, and if you hit control+C it will continue probing other mirrors. Sometimes it continues to completion, and sometimes it fails after a few mirror updates with:

Traceback (most recent call last):
  File "./cronscripts/distributionmirror-prober.py", line 152, in ?
    script.lock_and_run()
  File "/srv/launchpad.net/production/launchpad/cronscripts/../lib/canonical/launchpad/scripts/base.py", line 213, in lock_and_run
    implicit_begin=implicit_begin)
  File "/srv/launchpad.net/production/launchpad/cronscripts/../lib/canonical/launchpad/scripts/base.py", line 195, in run
    self.main()
  File "./cronscripts/distributionmirror-prober.py", line 128, in main
    self._create_probe_record(mirror, logfiles[mirror.id])
  File "./cronscripts/distributionmirror-prober.py", line 46, in _create_probe_record
    file=logfile, contentType='text/plain')
  File "/srv/launchpad.net/production/launchpad/cronscripts/../lib/canonical/launchpad/database/librarian.py", line 147, in create
    fid = client.addFile(name, size, file, contentType, expires, debugID)
  File "/srv/launchpad.net/production/launchpad/lib/canonical/librarian/client.py", line 85, in addFile
    raise UploadFailed('Invalid length: %d' % size)
canonical.librarian.interfaces.UploadFailed: Invalid length: 0